forked from KolibriOS/kolibrios
65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/*!
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\file Draw_Pixel.c
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\author Mario Palomo <mpalomo@ihman.com>
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\author Jose M. de la Huerga Fernández
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\author Pepe González Mora
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\date 05-2002
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free Foundation,
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Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#define SDL_DRAW_PUTPIXEL_BPP(A, B, C) \
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*(##A##(##B##(Uint8*)super->pixels + y*super->pitch + x*SDL_DRAW_BPP))=##C##;
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#if SDL_DRAW_BPP == 1
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#define SDL_DRAW_PUTPIXEL SDL_DRAW_PUTPIXEL_BPP(0+,0+,(Uint8)color)
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#elif SDL_DRAW_BPP == 2
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#define SDL_DRAW_PUTPIXEL SDL_DRAW_PUTPIXEL_BPP((Uint16*),0+,(Uint16)color)
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#elif SDL_DRAW_BPP == 3
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#define SDL_DRAW_PUTPIXEL \
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SDL_DRAW_PUTPIXEL_BPP(0+,1+,colorbyte1) \
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if (SDL_BYTEORDER == SDL_BIG_ENDIAN) { \
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SDL_DRAW_PUTPIXEL_BPP(0+,0+,colorbyte2) \
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SDL_DRAW_PUTPIXEL_BPP(0+,2+,colorbyte0) \
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}else{ \
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SDL_DRAW_PUTPIXEL_BPP(0+,0+,colorbyte0) \
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SDL_DRAW_PUTPIXEL_BPP(0+,2+,colorbyte2) \
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}
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#elif SDL_DRAW_BPP == 4
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#define SDL_DRAW_PUTPIXEL SDL_DRAW_PUTPIXEL_BPP((Uint32*),0+,color)
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#endif /*SDL_DRAW_BPP*/
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void SDL_DRAWFUNCTION(SDL_Surface *super,
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Sint16 x, Sint16 y, Uint32 color)
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{
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#if SDL_DRAW_BPP == 3
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Uint8 colorbyte0 = (Uint8) (color & 0xff);
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Uint8 colorbyte1 = (Uint8) ((color >> 8) & 0xff);
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Uint8 colorbyte2 = (Uint8) ((color >> 16) & 0xff);
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#endif
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SDL_DRAW_PUTPIXEL
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}/*Draw_Pixel*/
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#undef SDL_DRAW_PUTPIXEL
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#undef SDL_DRAW_PUTPIXEL_BPP
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